THE EFFECT OF RAPID NEUTRAL-NEUTRAL REACTIONS ON CHEMICAL-MODELS OF DENSE INTERSTELLAR CLOUDS

被引：119
作者：
HERBST, E
LEE, HH
HOWE, DA
MILLAR, TJ
机构：
[1] OHIO STATE UNIV,DEPT ASTRON,COLUMBUS,OH 43210
[2] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT MATH,MANCHESTER M60 1QD,LANCS,ENGLAND
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1994年 / 268卷 / 02期
基金：
美国国家科学基金会;
关键词：
MOLECULAR PROCESSES; ISM; CLOUDS; MOLECULES;
D O I：
10.1093/mnras/268.2.335
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Recent experiments on rapid neutral-neutral reactions involving the radical CN at low temperature and the neutral C atom at room temperature suggest that atom-neutral and radical-neutral reactions may be generally more rapid at low temperature than hitherto thought. We have included a variety of rapid neutral-neutral reactions in our gas-phase chemical models of quiescent, dense interstellar clouds. We find the calculated abundances of many molecules to be greatly changed from previous values. In particular, the peak 'early-time' abundances of organic molecules are reduced.
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页码：335 / 344
页数：10
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